POL converters or DC-DC converters

  • Thread starter rama1001
  • Start date
  • #1
132
1
Hi,
I understand the basic thing about DC-DC to converter but doubtful on POL converter. What exactly mean by point of load converter. Can any one explain me clear and short in good way.
 

Answers and Replies

  • #2
davenn
Science Advisor
Gold Member
2019 Award
9,336
8,004
Hi Rama

ok they are basically the same thing :) its just their positioning in the equip that is the difference

I have noticed this more and more on gear I service .... instead of the PUS's being centrally placed and voltages distributed all over the board/s.
The trend now is to place small hi efficiency DC-DC buck converters right at the POL.
All the buck converters (with their various voltage rails) are all fed from a central higher voltage and well regulated AC-DC ( or DC-DC in the case of portable gear) PSU.
the final regulation is done on the PCB right at the point of load instead of off board or at the far end of a larger PCB.

cheers
Dave
 
  • #3
309
1
Hi Rama

ok they are basically the same thing :) its just their positioning in the equip that is the difference

I have noticed this more and more on gear I service .... instead of the PUS's being centrally placed and voltages distributed all over the board/s.
The trend now is to place small hi efficiency DC-DC buck converters right at the POL.
All the buck converters (with their various voltage rails) are all fed from a central higher voltage and well regulated AC-DC ( or DC-DC in the case of portable gear) PSU.
the final regulation is done on the PCB right at the point of load instead of off board or at the far end of a larger PCB.

cheers
Dave
I remember reading an article that Google re-engineered there servers to run on 12V power supplies, supposedly to improve efficiency by a small amount. I remember wondering how they would get the chips to work, if they had to re-engineer those too. Point-of-Load regulation seems more like what might have been done, you think that's a plausible explanation for what I read?
 

Related Threads on POL converters or DC-DC converters

  • Last Post
Replies
2
Views
4K
  • Last Post
Replies
6
Views
2K
  • Last Post
Replies
22
Views
5K
  • Last Post
Replies
18
Views
1K
  • Last Post
Replies
11
Views
5K
  • Last Post
Replies
2
Views
2K
  • Last Post
2
Replies
28
Views
4K
  • Last Post
Replies
12
Views
4K
Replies
5
Views
12K
Replies
5
Views
2K
Top